<template>
  <!--展示外部图标-->
  <div
    v-if="isExternalIcon"
    :style="externalIconStyle"
    class="svg-external-icon svg-icon"
    :class="className"
  ></div>
  <!--展示内部图标-->
  <svg v-else class="svg-icon" :class="className" aria-hidden="true">
    <use :xlink:href="iconName" />
  </svg>
</template>

<script setup>
import { computed } from "vue";
import { isExternal } from "@/utils/validate";
const props = defineProps({
  icon: {
    type: String,
    required: true,
  },
  className: {
    type: String,
    required: false,
    default: "",
  },
});

const isExternalIcon = computed(() => isExternal(props.icon));

const externalIconStyle = computed(() => ({
  mask: `url(${props.icon}) no-repeat 50% 50%`,
  "-webkit-mask": `url(${props.icon}) no-repeat 50% 50%`,
}));

const iconName = computed(() => `#icon-${props.icon}`);
</script>

<style lang="scss" scoped>
.svg-icon {
  width: 1em;
  height: 1em;
  vertical-align: -0.15em;
  fill: currentColor;
  overflow: hidden;
}
.svg-external-icon {
  background-color: currentColor;
  mask-size: cover !important;
  display: inline-block;
}
</style>
